2.1 Flashcards
What is the primary function of a leaf?
The primary function of a leaf is photosynthesis.
True or False: The leaf is a reproductive organ of the plant.
False
Fill in the blank: The outer layer of the leaf is called the _______.
epidermis
What is the role of the stomata in leaves?
Stomata facilitate gas exchange, allowing CO2 in and O2 out.
Which part of the leaf contains chlorophyll?
The mesophyll cells contain chlorophyll.
What are the two types of mesophyll found in leaves?
Palisade mesophyll and spongy mesophyll.
Multiple choice: What is the main purpose of the cuticle on a leaf? A) Photosynthesis B) Water retention C) Gas exchange
B) Water retention
What is the vascular tissue in leaves responsible for transporting water and nutrients?
Xylem
What is the vascular tissue responsible for transporting sugars in leaves?
Phloem
True or False: All leaves are flat and broad.
False
What is the term for the small openings on the leaf’s surface?
Stomata
Fill in the blank: The layer of cells beneath the cuticle is known as the _______.
epidermis
What is the significance of leaf veins?
Leaf veins provide structural support and transport water and nutrients.
Multiple choice: Which type of mesophyll is primarily involved in photosynthesis? A) Spongy mesophyll B) Palisade mesophyll C) Epidermis
B) Palisade mesophyll
What adaptation do leaves have to reduce water loss?
The presence of a waxy cuticle.
True or False: Leaves can be modified for storage or protection.
True
What is the role of guard cells?
Guard cells regulate the opening and closing of stomata.
Fill in the blank: The main photosynthetic pigment found in leaves is _______.
chlorophyll
What is the difference between simple and compound leaves?
Simple leaves have a single blade, while compound leaves have multiple leaflets.
Multiple choice: Which structure in the leaf is primarily responsible for gas exchange? A) Cuticle B) Stomata C) Veins
B) Stomata
What role does the spongy mesophyll play in leaves?
The spongy mesophyll facilitates gas exchange and contains air spaces.
True or False: The leaf structure can vary significantly among different plant species.
True
What is the primary factor that influences leaf shape and size?
Light availability
Fill in the blank: Leaves that are adapted to dry environments often have _______ leaves.
needle-like
What is the term for the process by which leaves lose water vapor?
Transpiration
What is the importance of leaf orientation?
Leaf orientation maximizes light capture for photosynthesis.
